OH1TV   OH1O   OH1WX
	Optimal antenna height for 50MHz single hop Es contact
	Es-layer height is assumed to be 120km
			ant		ant
		d	height	TOA	height
		810	6	14.5	1.0		Layer height = 120km
		1000	7.8	11.1	1.3
		1325	12	7.2	2.0
		1485	15	5.7	2.5
		1608	18	4.8	3.0
		1704	21	4.1	3.5
		1781	24	3.6	4.0
		1844	27	3.2	4.5
		1896	30	2.9	5.0
		1941	33	2.6	5.5
		1979	36	2.4	6.0
		2040	42	2.0	7.0
		2087	48	1.8	8.0
		km	m	deg	λ
	Back												28.5.2012